Comment 24 for bug 96693

 So there seems to be also a dma issue with the 2.6.20-15 .

Some more notes :-

 I removed the first HDD power link momentarily & made sure that its written as uninstalled the first HDD.& then booted from the CD. So this time it takes the 80 GB hdd as sda

sudo fdisk -l /dev/sda

Disk /dev/sda: 80.0 GB, 80060424192 bytes
255 heads, 63 sectors/track, 9733 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot Start End Blocks Id System
/dev/sda1 * 1 1460 11727418+ 83 Linux
/dev/sda2 1461 9484 64452780 83 Linux
/dev/sda3 9485 9733 2000092+ 82 Linux swap / Solaris

sudo hdparm -d1 /dev/sdb

/dev/sdb:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Inappropriate ioctl for device

 Any ideas folks?